CADASIL in Greece: Mutational spectrum and clinical characteristics based on a systematic review and pooled analysis of published cases.

Publisher: Wiley Country of Publication: England NLM ID: 9506311 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1468-1331 (Electronic) Linking ISSN: 13515101 NLM ISO Abbreviation: Eur J Neurol Subsets: MEDLINE

Publication: <2014- > : Oxford : Wiley
Original Publication: Oxford ; New York : Rapid Communications, [1994-

CADASIL*/diagnosis ; CADASIL*/epidemiology ; CADASIL*/genetics; Adult ; Aged ; Greece/epidemiology ; Humans ; Magnetic Resonance Imaging ; Middle Aged ; Mutation/genetics ; Receptor, Notch3/genetics ; Receptors, Notch/genetics ; Young Adult

Background: Differences have been noted in the clinical presentation and mutational spectrum of CADASIL among various geographical areas. The aim of the present study was to investigate the mode of clinical presentation and genetic mutations reported in Greece.
Methods: After a systematic literature search, we performed a pooled analysis of all published CADASIL cases from Greece.
Results: We identified 14 studies that reported data from 14 families comprising 54 patients. Migraine with aura was reported in 39%, ischemic cerebrovascular diseases in 68%, behavioral-psychiatric symptoms in 47% and cognitive decline in 60% of the patients. The mean (±SD) age of onset for migraine with aura, ischemic cerebrovascular diseases, behavioral-psychiatric symptoms and cognitive decline was 26.2 ± 8.7, 49.3 ± 14.6, 47.9 ± 9.4 and 42.9 ± 10.3, respectively; the mean age at disease onset and death was 34.6 ± 12.1 and 60.2 ± 11.2 years. With respect to reported mutations, mutations in exon 4 were the most frequently reported (61.5% of all families), with the R169C mutation being the most common (30.8% of all families and 50% of exon 4 mutations), followed by R182C mutation (15.4% of all families and 25% of exon 4 mutations).
Conclusions: The clinical presentation of CADASIL in Greece is in accordance with the phenotype encountered in Caucasian populations, but differs from the Asian phenotype, which is characterized by a lower prevalence of migraine and psychiatric symptoms. The genotype of Greek CADASIL pedigrees is similar to that of British pedigrees, exhibiting a high prevalence of exon 4 mutations, but differs from Italian and Asian populations, where mutations in exon 11 are frequently encountered.
(© 2021 European Academy of Neurology.)

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Keywords: CADASIL; NOTCH3, mutation, exon; cerebrovascular disease; dementia; migraine; stroke

0 (Receptor, Notch3)
0 (Receptors, Notch)

Date Created: 20211111 Date Completed: 20220404 Latest Revision: 20220531

20231215

10.1111/ene.15180

34761493